Taryn Simon collaborated with Russia’s State Atomic Energy Corporation (ROSATOM) to prepare a work of art made from nuclear material. In the year 3015, approximately one thousand years after its creation, a black square made from vitrified nuclear waste will be permanently displayed at Garage in a custom designed void that has been integrated into the new museum building.
I’d assume it would depend on the concrete. Some additives could affect the durability wildly.
Also I’d think some maintenance is planned for it anyways
Will that maintenance be carried out when needed for over a thousand years?
That’s to be seen